A nurse in an emergency department is reviewing a client's ECG reading.
Which of the following findings should the nurse identify as an indication that the client has first-degree heart block?
Prolonged PR intervals.
Nondiscernible P waves.
More P waves than QRS complexes.
No correlation between P and QRS waves.
The Correct Answer is A
First-degree heart block is a type of atrioventricular (AV) block that involves the consistent prolongation of the PR interval (defined as >0.20 seconds) due to delayed conduction via the atrioventricular node.
This is seen on an ECG as a PR interval greater than 200 ms in length.
Choice B: Nondiscernible P waves are not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice C: More P waves than QRS complexes is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice D: No correlation between P and QRS waves is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
“Flush the catheter manually with 0.9% sodium chloride.” The client is receiving continuous bladder irrigation following a transurethral resection of the prostate and reports bladder spasms and decreased urinary output.
These symptoms may indicate that the catheter is blocked with blood clots.
Flushing the catheter manually with 0.9% sodium chloride can help to remove any blood clots and restore urinary output.
Choice A is not the correct answer because removing the indwelling urinary catheter would not address the underlying issue of blood clots blocking the catheter.
Choice B is not the correct answer because decreasing traction on the catheter would not address the underlying issue of blood clots blocking the catheter.
Choice C is not the correct answer because while ibuprofen may provide some pain relief, it would not address the underlying issue of blood clots blocking the catheter.
Correct Answer is A
Explanation
The nurse should instruct the client to wash their perineal area two times each day with antimicrobial soap.
This is important because chemotherapy can weaken the immune system, making the client more susceptible to infections.
Choice B is wrong because washing a toothbrush in a dishwasher once a month is not an effective way to prevent infection.
Choice C is wrong because changing a pet’s litter box daily could expose the client to harmful bacteria and should be avoided.
Choice D is wrong because changing the water in a drinking glass every 4 hours is not necessary for preventing infection.
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